<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Spring Boot + Websocket + 广播式</title>
</head>
<body onload="disconnect();">
<noscript><h2>貌似你的浏览器不支持websocket</h2></noscript>
<div>
    <div>
        <button id="connect" onclick="connect();" >连接</button>
        <button id="disconnect" disabled="disabled" onclick="disconnect();">断开连接</button>
    </div>
    <div id="conversationDiv">
        <label for="name">输入你的名字</label><input type="text" id="name"/>
        <button id="sendName" onclick="sendName()">发送</button>
        <p id="response"></p>
    </div>
</div>
<script src="sockjs.min.js"></script>
<script src="stomp.min.js"></script>
<script src="jquery.js"></script>

<script type="text/javascript">
    var stompClient = null;
    function setConnected(conneted){
        document.getElementById('connect').disabled = conneted;
        document.getElementById('disconnect').disabled = !conneted;
        document.getElementById('conversationDiv').style.visibility = conneted ? 'visible' : 'hidden';
        $('#response').html();
    }

    function connect(){
        var socket = new SockJS('/endpointWisely');
        stompClient = Stomp.over(socket);
        stompClient.connect({}, function(frame){
            setConnected(true);
            console.log('Connectd:' + frame);
            stompClient.subscribe('/topic/getResponse', function(response){
                showResponse(JSON.parse(response.body).responseMessage);
            })
        });
    }

    function disconnect(){
        if(stompClient != null){
            stompClient.disconnect();
        }
        setConnected(false);
        console.log('Disconnected');
    }

    function sendName(){
        var name = $('#name').val();
        stompClient.send('/welcome', {}, JSON.stringify({'name':name}));
    }

    function showResponse(message){
        var response = $('#response');
        response.html(message);
    }
</script>
</body>
</html>